LIST OF OSTEOLOGICAL SPECIMENS. 



45 



Skull. Chili. From Mr. Bridge's collection. 



* Skull, (white var.) Chili. From Mr. Bridge's collection. 



* Skull. Chili. From Mr. Bridge's collection. 



Echimys, Geoff. 



The Red-tailed Echimys. Echimys myosuros. 

 Skull. Tropical America, Bahia. 



Ascomys, Geoff. 



The Egyptian Ascomys. Ascomys dimidiatus. 



* Skull. Egypt. From the Stockholm Museum. 



Petromys, A. Smith. 



The Rock Mouse. Petromys typicus. 

 Skull. South Africa. From the South African Museum. 



Hystrix, Linn. 



The Porcupine. Hystrix cristata. 

 Skull. Xanthus. Presented by G. Scharf, Jun., Esq. 

 Skull, adult. 



The Sayal. Hystrix leucurus. 

 Two Skulls. India. Presented by B. H. Hodgson, Esq. 

 Bones of the body, without limbs. 



Erethizon, F. Cuv. 



The Cawquaw or Urson. Erethizon dorsatum. 



* Skull. Central America. 



Spiggurus, F. Cuv. 



The Orico. Spiggurus insidiosa. 



* Skull, young. Brazils. From Mr. Brandt's collection. 

 Skull, young. Brazils. 



Ch^etomys, Gray. 



The Quilled Rat. Cheetomys subspinosus. 



* Skull. Brazils. From Mr. Brandt's collection. The specimen 



described in the Proc. Zool. Soc. for 1843, p. 21, and figured 

 in the 6 Voyage of the Sulphur,' pi. fig. 



* Skull. Brazils. From Mr. Brandt's collection. 



Cercolabes, Brandt, 



The Coendoo. Cercolabes prehensilis. 

 Skeleton. Brazils. 



* Skull, young. 



